feat(confreg): add interrupt support for fft, dma and uart

rtl/ip/confreg/confreg.v

@@ -89,6 +89,8 @@ module confreg #(
     output      [7:0] dpy1,
     input      [31:0] switch,
     input      [3 :0] touch_btn,
+
+    input             uart0_int,
     input             dma_finish,
     input             fft_finish,
     output            confreg_int
@@ -382,7 +384,7 @@ always @(posedge aclk) begin
     end
 end
 
-assign int_in = {27'b0, timer_int, touch_btn_data};
+assign int_in = {24'b0, dma_finish, fft_finish, uart0_int, timer_int, touch_btn_data};
 
 int_ctrl u_int_ctrl (
     .clk       (aclk),